Method of constructing and supporting forms for concrete work



Dec. 4, 1928. 1,694,292

F. A. TRACEY METHOD OF CONSTRUCTING AND SUPPORTING FORMS FOR CONCRETEWORK Filed Feb. 10, 1928 4 Sheets-Sheet 1 Q N v, E t o o o I a Q 0 a o oI MI 0 o o q\ &

I e I I nm A? N o a o 0 0 0 o a o o a l'iuframy w INVENTOR ATTO R N EYDec. 4, 1928. 1,694,292

. F. A. TRACEY METHOD OF CONSTRUCTING AND SUPPORTING FORMS FOR CONCRETEWORK Filed Feb. 10, 1928 4 Sheets-Sheet 2 &l

INVENTOR TTOR N EY Dec; 4, 1928.

F. A. TRA CEY METHOD OF CONSTRUCTING AND SUPPORTING FORMS FOR CONCRETEWORK Filed Feb. 10, 1928 4 Sheets-Sheet ATTORNEY A 5 Dec. 4, 1928.

F. A. TRACEY METHOD OF CONSTRUCTING AND SUPPORTING FORMS FOR CONCRETEWORK 4 SheetsSheet 4 Filed Feb. 10, 1928 m Trade ATTOR N EY PatentedDec. 4, 1928.

UNITED "S j FRED A. TRACEY, oFroitTLAnn, cane-on.

METHOD or CONSTRUCTING annsurronrme' roams non cones-nan wonx.

Application filed February 10, 1928. Serial No. 253,405.

My present invention has reference to a method of constructing andsupporting forms for concrete work whereby any desired form thatcomprises form units designed to be bolted together may be obtained, thesald units being readily unbolted and removed without injury to theunit-s, so that the form can be practically continuously used.

Among the objects ofhe invention I seek to obtain a form constructionthat can be easily and quickly erected; one in which time is saved instripping or taking down the form,

one wherein all of the materials comprising the same are re-usable,wherein the units constituting the form can be rigidly connected" and,therefore, produce a stronger 'construction than is usual; one in whichperfect alinement of all the form units will be readily obtained,changes in the form after erection made without confusion or litter, andfurther wherein the form units may be assembled or disassociated withoutthe employment of skilled labor.

To the attainment of the above desired results, the improvement alsoresidesin certain other novel features of constructiongcombr nation andoperative association of parts, one

satisfactory embodiment by the accompanying drawings.

In the drawings i I Figure l is a top plan view of the form for concretework in accordancewith this invention. 7 7

Figure 2 isa sectional view on theline 22 of Figure 1.

Figure 3 is a perspective view of one of the main form units.

Figure 4 is a similar inner corner form units; I Figure 5 is aperspective view of one of the outer corner posts for the form.

Figure 6 is a similar view of the which connect the form'units.

Figure 7 is a sectional view approximately on the line 7-7 of Figure 1.V

beams Figure 8 is a sectional view approximately on the line 88 ofFigure l.'

Figure 9 is a sectional view approximately on the line 99 of Figure 2. V

Figures 10 and 11 illustrate two ofa multiplicity of spacer strips'orelements which may be'employed for widening the form.

Figure 12 is a perspective view ofjthe-corner posts employed when theform is con structed at otherthanright angle.

of which is disclosed it will be noted also approximately 4 view of oneof the I I centers and 6" from each corner of the units;

units 1', and the remainder of the improve- I ment may be constructed ofany desired material, wood, however, being preferred. Each unit 1 is ofa size to permit of the convenient handling thereof. For distinction thevertical or end posts of the frame of each of the units 1 isindicated bythe numeral 2 and the top and bottom beams connecting the posts 2, bythe numeral 3; There are intermediate vertical beams twhose endsaresecured to the inner faces of the beams 3 andtransverse plates 5connecting the intermediate plates or beams 4 and the side beams orposts-2' in this manner it will be seen 'thatthe framesoonstituting'theunits'l present a strong and rigid construction. Theframes of 'eachof theunits have a facing 6 of shiplap or othersuitable-material, which facing in turn, isfaced with a metal sheet 7.These facings, materially reinforce the.

frame, andthe metal facings will'effectin obtaining moreperfect resultsthan is possible with ordmarywoo-d forms for concrete work.

However, for rough work the metal facing i may be dispensed with; Alloftheouter edges of theforms 1, thatis, the elements 2' and 3 anchoredwith standardsized bolt holes 8, and these holes are boredon exactly 6?and also at an equal-distance from the facing of the units: The holesare bored at this distance to-allow for bolt headsv and'large sizedwashers .and nuts which are screwed on t-he'bolts being received insideof the frames. The bolt holes a ranged 6 apart maybe re ferred to as thestandard boringan-d the spac; g

ing of all bolt holes'on all are uniform, thus changeability and exactalinement at the joints. Ordinary standard units of certain size may beused with shorter or narrower" of the form unit-s units-only to fill upthe required dimensions.

The form units 1 are arranged one over; the other and are connectedb y'bolts 9 and nuts which pass through the-openin'gs' S in providingcomplete inter- V lie of the said posts are disposed 3 aline with thebolt openings the upper and lower beams 3 of the said units,

f' of the inner'form units has a facing 26 s1m- (see Figure 7). The sideor end beams 2 the adjacent units are not in direct contact with 'eachother, the same being held from such contact by the arrangementtherebetween of posts which I shall refer to as form-supports. Theseposts 10 are of rectangular formation and are made in convenient lengthswhich are multiples of 6 and .are provided with, transverse bolt holes11 which are arranged 6 apart. The form supporting posts are arrangedoneover the other and the bolt holes 11 nearest the ends from said ends.WVhen it is found necessary to cut thesefposts the bolt openings fromthcsaid ends must be always arranged 3 from the said ends so that thebolt openings 11 will 8 in the form units 1, so that bolts 12 engagedbysuitable nuts pass through'the said bolt openings 8 in the units 1 andthe bolt openings 11 in the form supporting posts 10. The heads of thebolts 9 and 12 contact with suitable washers and the nuts 18 whicharescrewed on these'bolts' also contact with washers. The formsupporting posts 10 are provided with spaced seriesof openings 14arranged right angularly with respect to the-bolt openings 11 and theseopenings 1e are designed for the reception of spacer and tie wires 15which properly space the inner. and outer mold units.

The jointsbetween the posts 10 are broken.

to the joint oru n'eeting ends with respect 1 so as not of thesuperimposed mold units to weaken the construction. When the mold Vposts or strips 15 is to be widened, spacer elements, such as I and 16,disclosed particularly by Figures 10 and 11 are disposed betweenthe formsupporting posts 10 and the sides of the units 1. These strips 15 and 16are also preferably .ofwood and are bored transversely to provide boltopenings 17 which are spaced 6 apart. 'The only waste in the formconstruction will result in the cutting of the spacer strips or postsand the e 7 cutting in the formsupporting posts 10.

e which connect the and 6" away fromthecorners, the posts 20 for beingindicated -The inner corner form units. each comprises a right-angularframe which is best illustrated by Figure 4 ofthe drawingsf ese cornerform units are indicated by the numeral'lS, the outer posts or uprightstherebythe numeral 19, the inner posts or uprights by the numeral 20and'the'upper and lower strips or beams posts 19 and 20 by the numerals21. The top and bottom members 21 are bored to provide bolt openings 22which are spaced 6" away from each other,

"nd 20 are connected by transverse brace strips-24,-an'd of the posts 20are connected by angle brace drawings.

the inner corners members 25. The outer surface of the frame as to theposts 10, when it to employ the said'spacing strips. V

The end units for the outer wall of the form, that is the unitsadjacentto the outer.

corners of the form are similar to the units 1, but-,of coursegaronarrower. These units also are, of course, of a greater length'than thesides'ofthe inner corner units 18 and the ends of these units indicatedfor distinctionby the numerals 28, have bolted thereto cor-j ner posts29 illustrated in Figure 5 of the The outer posts .of the units 28 havethe boltopenings therethro ugh spaced 6" apart, but the series ofopenings inthe, said posts are staggered withrespect to each other sothat one of such series of bolt open-Q with the bolt openings 30 thattransversely through'the posts 29 and ings will 'aline pass the otherseries will register with belt openings 31 that are arranged rightangularly' bolt openings 80. be seen that the but out of line with the.By this arrangement it will bolts that connect the'corner posts to theform are disposed a slight but suitable distance away ffrom' outercornerunits of the each other. p I r It is, ofcourse, necessary to braceonshore the form units so that the same will .not

bulgewhen concrete is In the drawings I have illustrated the shores orbraces applied to only the inner form units.

- on certain of the posts or uprightsof the form units I arrangebrackets ofa particular and peculiar construction. Each of thesebracketscomprises a substantially rectangular-body portion made up each'n bolted, in the showing of the drawings, to the ostsof the-units 1 andan outerplate 33 bolted to the outer end of the plate 32, the connectingbolt between the plates 32 and 33 poured into the form.v

'75 'rather'to the form support .10 and if neces- 'sary tothe spacerstrips 15 and 16 'as'well is found necessary of a lower plate/32 7 alsosecuring thereto 'an'angle brace plate 34:

which is boltedto the said upright of the unit 1. The upper end of theplate 33 is con nected by a removable pivot 35 to the upper plate 36which is bolt-ed to the upright or post of the unit 1. By removingthepivot itwill be noted that the plates '33 and .36 will be swung awayfrom each other which permits of a beam.-37 being and supported upontheplate 32;, After the beams 37 are-thus arranged theplates'33 and 36are swung toward each other and the pivot inserted through the pivotopenings therefor.

received in the bracket Also after this is effected wedge elements 38are inserted between the plates 33 and 36 for frictionally contactingwith the beam 37.

Received through the beams 37 there are eye bolts 38'which, of course,are engaged by nuts. The headed or eye ends of the bolts 38 are disposedupon the inner or confronting faces of the beams 37, and these ends orheads have pivotally secured thereon the bifurcated end or head portions39' of screws 40. Each screw 40 is threaded through an opening in the,outer end of a metal sleeve tl that surrounds and is secured to ashoringbeam 42. The ends of the shoring beams 42 that receive the screws40 therein are, of course, provided with sockets 43. Threaded on thescrews and contacting with the outer ends of the sockets 43 there areadjusting nuts 44. The shoring form construction.

beams 42 are each provided with equidistantly spaced bolt openings 45,and the respective pairs of cooperating shoring beams are designed tohave their ends arranged one over the other and through the aliningopenings in these lapping ends there are passed bolts 46 which are, ofcourse, engaged by nuts. 7 3

By adjusting the nuts 44: on the screws 40 the 'adjustably connectedshoring beams will be moved longitudinally with respect to the units ofthe form and effectively sustain such units in proper spaced relation toeach other.

When the sides of the form are disposed at other than a right angle,corner posts 47, such as illustrated by Figure 12 of the drawings areemployed, it being noted'that the face 48 of said beam!!! is beveled andcut at an angle.

It is believed the simplicity and advantages of my construction will befully understood and appreciate'dby those skilled in the art to whichsuch invention relates, when the-foregoing description has beencarefully read in connection with the accompanying drawings, butobviously I do not wish to be restricted to the precise details ofconstruction herein set forth, and, therefore, hold myself entitled tomake such changes therefrom as fairly fall within the scope of what Iclaim. It is to be further understood that while I have mentioned thebolt openings being arranged six inches from center to center, the saidopenings may be otherwise spaced,*it being only neces-v sary that thebolt openings be arranged equi distantly from each other throughout theHaving described the invention, I claim:

1. A form for concrete work, comprising inner and outer spaced units,each of which including a frame, of the same height and through for thereception of bolts therethrough when the units are arranged side by sideand one over the other, vertical form supporting posts through which theside .bolts pass and spacer wires passing through transverse openings inthe inner and outer supporting posts and spacer strips between the formsupporting posts and form units through which the bolts also pass,breakable v a brackets oncertain of the inner form units, eye boltscarried thereby, screws pivoted to the eye bolts, adjustably connectedshore' beams having sockets in the ends thereof for the screws and nutsthreaded on the screws for contacting with the ends of the shore beams.r

2. A form for concrete structures, comprising inner and outer units, all'of' which include frames of the same size and dimensions except .thecorner units, all of said frames havingfacings and the ends and ed esthereof being provided with equidistantly spaced bolt receivingopenings, the inner corner frames being of triangular formation andbraced, said units-designed to-be arranged edge to edge and insuperimposed relation and to have bolts passing through the registeringopenings therein, form supporting posts having equidistantly spaced boltopen ings therethrough that are arranged between the confronting edgesof the units and receiving the bolts therethrough, spacer strips betweenthe form supporting posts and the frame units having equidistantlyspaced f openings for the reception of bolts, wire members passingtransversely through the formf supporting posts, corner posts for thecorners of the outer frame units having equid1stantly spaced boltopenings for the reception of the bolts therethrough, collapsiblebrackjets removably and adjustably secured to the inuerframe units, abeam supported inthe brackets, wedge elements securing the beam in thebrackets, shorings between the brackets, each comprising adjustablyconnected beams having sockets through the ends thereof, a casingsurrounding said ends,- swingably supported screws on the beams receivedthrough said casings and into said "sockets and nuts threaded on saidscrews for I FREDA. TRACEY.

